Dishwasher Heating element not working

Hello preslncon - The black button that you are referring to is more than likely the Hi-Limit Thermostat. The Hi-Limit Thermostat will open and stop power from reaching the heating element. The Hi-Limit is not resettable, and if it is open, it would need replacing. As far as the burnt wire on the Thermostat, more than likely a loose connection to the Thermostat could have possibly caused the wire to overheat. This is not a typical do it yourself job. Personally, I would recommend reaching out to a qualified appliance repair person to proceed further. I hope this information helps to some degree.

Most likely a bad heating element and or bad thrmostats. you'll need to check these by ohming out after removing the rear panel to your dryer.

NOTE: The heating circuit should be troubleshot with the dryer UNPLUGGED. Dangerous voltages are still present with the dryer turned off. Resistance readings are as follows:

Heating Element (located inside heater box) – remove the two leads from the ceramic terminals on the heating element and take a reading across the terminal points. It should read 9 - 13 ohms.

Thermal Cut-Out (TCO) (mounted to the heater box.) - unplug wires and take reading across connector tabs. Reading should be 0 ohms.

Hi-Limit Thermostat (mounted to the heater box, closest to the heating element leads) - unplug wires and take reading across connector tabs. Reading should be 0 ohms.

If any of the above readings are abnormal, replace the component. NOTE: If the TCO or Hi-Limit Thermostat is defective it is highly recommended by most manufacturers to replace BOTH components at the same time. They are often sold as a set. Without doing so, these components can cause potentially fail again.

Your temperature thermostat or heater coil is most likely bad, you can test by ohming each. NOTE: The heating circuit should be troubleshot with the dryer UNPLUGGED. Dangerous voltages are still present with the dryer turned off. Resistance readings are as follows:

Heating Element (located inside heater box) – remove the two leads from the ceramic terminals on the heating element and take a reading across the terminal points. It should read 9 - 13 ohms.

Thermal Cut-Out (TCO) (mounted to the heater box.) - unplug wires and take reading across connector tabs. Reading should be 0 ohms.

Hi-Limit Thermostat (mounted to the heater box, closest to the heating element leads) - unplug wires and take reading across connector tabs. Reading should be 0 ohms.

If any of the above readings are abnormal, replace the component. NOTE: If the TCO or Hi-Limit Thermostat is defective it is highly recommended by most manufacturers to replace BOTH components at the same time. They are often sold as a set. Without doing so, these components can cause potentially fail again.

All the heating and temperature control components are located in the back of the dryer. To access, unplug the dryer and remove the exhaust vent hose. Turn the the dryer around so you can view the back and remove the back panel. With the panel removed, the component locations are as follows:

Right-Hand Side:

1. Heating element - located inside the heater box. If bad, the dryer will run, but will not heat. A good reading is about 9 to 13 ohms.

2. Thermal Cut-Out (TCO) - located on the outside of the heater box on the end opposite the heating element terminals. If bad, the dryer will run, but will not heat. A good reading is a short (0 ohms).

3. Hi-Limit Thermostat - located on the outside of the heater box adjacent to the heating element terminals. It works in conjunction with the TCO to help regulate the drum internal temperature. A good reading is a short (0 ohms).

NOTE: If either the TCO or Hi-Limit Thermostat are found to be defective, it is recommended that you replace BOTH components to prevent premature failure. These two components are commonly sold as a set.

Left-Hand Side:

1. Thermal Fuse - located on the blower fan housing. It is a small white plastic looking component with two wires attached. If defective, the dryer will not run at all. If the component is good it should read a short (0 ohms).

2. Internal Bias Thermostat - located on the blower fan housing adjacent to the Thermal Fuse. It has four wires attached to it.

NOTE: All resistance checks should be performed with the component terminal wires disconnected to prevent false readings.

If you have any questions, you can refer to searspartsdirect.com for some helpful exploded view diagrams to assist you. The components I mention are listed under the "Bulkhead" heading as follows:

Item 6 - TCO/Hi-Limit Thermostat replacement kit
Item 15 - Hi-Limit Thermostat sold separately
Item 17 - Heating Element
Item 23 - Thermal Fuse
Item 24 - Internal Bias Thermostat

If you need further assistance, please let me know. I hope this helps you.

Hi
Do an ohms check on the element. With an ohms meter check the reading between the elements. The reading should be between 12 and 16 ohms for a 110v machine and 50 to 60 for a 220v machine. If you have no reading or a higher reading you have a bad element.
Replace the boiler

If all of the components are reading ok then you need a timer. Touch your 2 leads together. 0 ohms rght. That means you have a complete circuit.If you get the 0 reading then the element must be otay. Bad timer. Take that fancy meater of yours and atttach one of them leads to the timer leg marked RH. Yank the wire off the terminal beore you test. Move the timer around. You should get the famous 0 reading along the way. If you don't then that means you have the bad timer.

If you need further help, reach me via phone at https://www.6ya.com/expert/dan_73bbd84fe1d95b61

If the heating element read 0 ohms with the wires removed, you have an open heating element, (should be around 10 ohms) replace heating element and you should be ready to rock.

hi If it reads 0 hms yes thats te problem Thanks the appliance doc

If you go to searspartsdirect.com, type in your model number in the Search menu, then look under the "Bulkhead" menu option, you will see an illustration of your dryer. You will need to remove the heater box cover (item #5) to get to the heating element. The element should slide out of the bottom of the heater box housing. Removing the housing from the dryer first makes it easier. Sometimes you may need a little muscle in getting the heater coil to come out.

Have you checked the thermal cut-out(TCO)/hi limit thermostat? This is item #1 in the drawing. If your dryer runs, but does not heat, this is normally the culprit. You are right to assume you could have a heating element problem, but the element tends to be more resilient. In my experience with electric dryers, the thermal cut-out tends to go bad first. It's easier to check and easier to replace as it is mounted on the outside of the heater box. Check for the following:

With the heater box STILL installed, the TCO will be a small component mounted at the top of the heater box housing. The hi-limit thermostat will be mounted at the bottom of the heater box housing next to the ceramic terminal of the heating element. With the dryer UNPLUGGED, disconnect the wires to the TCO and do a resistance reading. It should read 0 ohms if good. Do the same with the hi-limit thermostat. It should also read 0 ohms if good. Last of all perform a reading across the leads of the heating element with the wires unplugged. You should get a reading of 9 - 13 ohms if it is good. If you determine the TCO or hi-limit thermostat to be bad, it is HIGHLY recommended that you replace them BOTH at the same time. They are sold as a set (part #279769). Failure to replace both components could result in part failure. The part number for the heating element is 4391960. I hope this helps you.

You can check the heating element with an ohmmeter and it should read a few hundred ohms. Don't know about the thermostat but it should be inline electrically with the heating element and should ohm as a short when cold.